High Hydrostatic Pressure
Mostrando 1-12 de 116 artigos, teses e dissertações.
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1. A review on high hydrostatic pressure for bivalve mollusk processing: relevant aspects concerning safety and quality
Abstract Mollusks are considered a nutritious source of food and their consumption has increased worldwide. However, their consumption, mainly of bivalves, has been considered responsible for numerous cases of foodborne diseases. This is related to their food intake, as they are filter-feeders and, consequently, bioaccumulate toxic compounds. High hydrostat
Food Sci. Technol. Publicado em: 31/01/2019
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2. Endolymphatic Sac Surgery for Ménière’s Disease - Current Opinion and Literature Review
Abstract Introduction The endolymphatic sac is thought to maintain the hydrostatic pressure and endolymph homeostasis for the inner ear, and its dysfunction may contribute to the pathophysiology of Ménière’s disease. Throughout the years, different surgical procedures for intractable vertigo secondary to Ménière’s disease have been described, and t
Int. Arch. Otorhinolaryngol.. Publicado em: 2017-06
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3. Development of an ω-Phase in Grade 2 Titanium Processed by HPT at High Hydrostatic Pressure
High-pressure torsion was used to process grade 2 titanium to 10 turns using different pressures up to a maximum of 8 GPa. X ray diffraction showed that the as-received material and the material processed at pressures of 2 GPa and 4 GPa were single phase but the material processed at 8 GPa contained both the h.c.p. and the simple hexagonal ω-phase. Nanoinde
Mat. Res.. Publicado em: 29/08/2016
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4. Applying liquid chromatography-tandem mass spectrometry to assess endodontic sealer microleakage
The objective of this study was to describe a new method for the quantitative analysis of a microleakage of endodontic filling materials. Forty extracted single-rooted teeth were randomly divided into three experimental groups. After root canal shaping, the experimental groups were filled using the lateral condensation technique with the Epiphany system (
Braz. oral res.. Publicado em: 21/08/2015
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5. Effect of high hydrostatic pressure on antioxidant content of 'Ataulfo' mango during postharvest maturation
The objective of this study was to evaluate the effect of pressurization on the concentration of some antioxidant compounds and the antiradical efficiency during the ripening process of 'Ataulfo' mango. The fruits at physiological maturity stage were pressurized at 15, 30, or 60 MPa for 10 or 20 min. Control fruits were not pressurized. The fruits were store
Food Sci. Technol. Publicado em: 06/08/2013
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6. Prediction of acid lactic-bacteria growth in turkey ham processed by high hydrostatic pressure
High hydrostatic pressure (HHP) has been investigated and industrially applied to extend shelf life of meat-based products. Traditional ham packaged under microaerophilic conditions may sometimes present high lactic acid bacteria population during refrigerated storage, which limits shelf life due to development of unpleasant odor and greenish and sticky appe
Braz. J. Microbiol.. Publicado em: 05/04/2013
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7. Heterogeneous flow during high-pressure torsion
High-Pressure Torsion (HPT) has attracted significant attention in recent years as an effective technique to process ultrafine and nanostructured materials. The hydrostatic pressure developed during processing prevents the occurrence of cracks and the low thickness to diameter ratio provides the opportunity for developing high strains at low numbers of rotat
Mat. Res.. Publicado em: 08/03/2013
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8. Microstructure and texture evolution in a magnesium alloy during processing by high-pressure torsion
Magnesium alloys often exhibit cracking and segmentation after equal-channel angular pressing (ECAP) at room temperature. With torsion shear deformation and a hydrostatic stress, high-pressure torsion (HPT) has an advantage over ECAP in the processing of hard-to-deform materials like magnesium alloys at room temperature. In this report, HPT was used on extru
Mat. Res.. Publicado em: 25/02/2013
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9. Tratamento com alta pressão hidrostática combinado com diferentes condições de temperatura e pH na inativação do Mycobacterium abscessus / Treatment with high hydrostatic pressure combined with different conditions of temperature and pH on inactivation of Mycobacterium abscessus
Mycobacterium abscessus é um importante patógeno de origem hospitalar que contamina materiais cirúrgicos e biofarmacêuticos. Estes quando mal esterilizados tornam-se agentes infectantes gerando graves patologias nas pessoas que os utilizam. A crescente incidência desse patógeno, as dificuldades de tratamento, a gravidade clínica e, a dificuldade de es
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/06/2012
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10. Aspectos termodinâmicos e bases moleculares na interação de proteínas monoméricas com agentes desnaturantes e alta pressão hidrostática / Thermodynamic aspects and molecular basis of monomeric proteins interaction with desnaturants and high hydrostatic pressure
Ureia desnatura proteínas em diferentes concentrações, dependendo das condições experimentais e da proteína. A proteína monomérica soro albumina bovina (BSA) foi o principal modelo de investigação na presença de concentrações subdesnaturantes de ureia com base no modelo de equilíbrio de dois estados. A desnaturação induzida por alta pressão
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/08/2011
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11. Qualidade de polpa de camu-camu [Myrciaria dúbia (H.B.K.) McVaugh], submetida aos processos de congelamento, pasteurização, alta pressão hidrostática e liofilização e armazenada por quatro meses / Quality of camu-camu [Myrciaria dubia (H.B.K.) McVaugh] pulp submitted to the processes of freezing, pasteurization, high hydrostatic pressure and lyophilization and stored for four month
Este trabalho consta de uma avaliação da qualidade intrínseca e da qualidade percebida por potenciais consumidores espanhóis de polpa de camu-camu [Myrciaria dubia (H.B.K.) McVaugh] submetida a quatro diferentes tratamentos: congelamento, pasteurização, pressurização (alta pressão hidrostática) e liofilização, armazenada congelada por quatro mese
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/06/2011
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12. Resposta de Saccharomyces cerevisiae ao estresse de alta pressão hidrostática. / Saccharomyces cerevisiae response to the stress of high hydrostatic pressure.
As leveduras, principalmente Saccharomyces cerevisiae, são as responsáveis direta pela transformação do açúcar em álcool etílico e dióxido de carbono, sendo por isso, um dos microrganismos mais importantes empregados nas indústrias de fermentação, seja de bebidas ou etanol combustível. Durante o processo de fermentação as leveduras ficam expos
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/05/2011